Clarendon EOC Specifications_VOL 3.pdf

EMERGENCY MANAGEMENT & 911

COMMUNICATIONS DISPATCH CENTER

Clarendon County 1091 Capital Way, Manning, SC 29102

May 5, 2025

Volume 3 of 3

Caplea Coe Architects, Inc.

1643 Means Street

Charleston, SC 29412

(843) 577-6073

EMERGENCY MANAGEMENT AND 911 COMMUNICATIONS DISPATCH CENTER

May 1, 2025

ELECTRICAL GENERAL REQUIREMENTS 260500 - 1

SECTION 260500 - ELECTRICAL GENERAL REQUIREMENTS

PART 1 - GENERAL CONDITIONS

1.1 WORK INCLUDED

A. The work covered under these sections of the specifications consists of furnishing all labor, equipment, supplies and materials, and of performing all operations, including cutting, channeling, chasing, excavating, and backfilling necessary for the installation of complete wiring systems, raceways, wiring, and electrical equipment in accordance with this section of the specifications and the accompanying drawings.

B. The Electrical Work shall include, but not be limited to, the following:

1. Electrical distribution system

2. Wiring devices

3. Raceway systems

4. Conductors and cables

5. Lighting and lighting controls

6. Fire Alarm System

7. Emergency and Standby Power Systems

8. Uninterruptible Power Supply (UPS) Systems

1.2 RELATED WORK

A. Related work to Division 26:

1. Division 1

2. The provisions, conditions, and requirements preceding and including general and supplemental conditions apply to and are a part of Divisions 26, 27, and 28.

1.3 DEFINITIONS

A. Provide: Furnish and install complete ready for use, including all accessories required for operation.

B. Furnish: Purchase and deliver to the project site complete with every necessary appurtenance, support and accessories required for operation.

C. Install: Unload at the delivery point at the site and perform every operation necessary to establish secure mounting and correct operation at the proper location in the project.

1.4 DESCRIPTION OF SYSTEMS

A. Furnish and install all materials for systems, resulting upon completion, in functioning systems in compliance with performance requirements specified. The omission of express reference to any parts necessary for or reasonably incidental to a complete installation shall not be construed as a release from furnishing such parts.

ELECTRICAL GENERAL REQUIREMENTS 260500 - 2

B. The wiring specified and shown on the drawings is for complete and workable systems. Any deviations from the wiring shown due to a particular manufacturer's requirements shall be made at no cost to either the contract or to the Owner. Changes in electrical service to equipment due to substitutions of equipment by any Divisions of this specification shall be at no additional cost to the Owner.

1.5 QUALITY ASSURANCE

A. All equipment and materials required for installation under these specifications shall be new and without blemish or defect. All equipment shall bear labels attesting to Underwriters Laboratories approval where subject to Underwriters Laboratories label service.

B. Equipment and material which are not covered by UL Standard will be accepted provided equipment and material is listed, labeled, certified or otherwise determined to meet safety requirements of a nationally recognized testing laboratory. Equipment of a class which no nationally recognized testing laboratory accepts, certifies, lists, labels, or determines to be safe will be considered, if inspected or tested in accordance with national industrial standards, such as NEMA, ICEA or ANSI. Evidence of compliance shall include certified test reports and definitive shop drawings.

C. All equipment of one type (such as panelboards, breakers, etc.) shall be the products of one manufacturer.

1.6 REQUIREMENTS OF REGULATORY AGENCIES/CODE COMPLIANCE

A. Contractors shall submit all items necessary to obtain all required permits to the appropriate Regulatory Agencies, obtain all required permits, and pay all required fees.

B. All work shall conform to the following Building Codes:

1. National Electrical Code (NEC-2020)

2. South Carolina Building Code (SCBC 2021)

C. All work shall conform to all federal, state and local ordinances.

D. References to the National Electrical Code and National Fire Protection Association (NFPA) are a minimum installation requirement standard. Design drawings and other specification sections shall govern in those instances where requirements are greater than those specified in the NEC and NFPA.

PART 2 - PRODUCTS

2.1 GENERAL REQUIREMENTS

A. All products shall be new (except where noted) and unused and without blemish or defect.

ELECTRICAL GENERAL REQUIREMENTS 260500 - 3

2.2 SUBSTITUTIONS

A. Products included in the specifications and drawings indicate a basis-of-design. Where less than (3) manufacturers are indicated for a product, equal substitutions will be considered provided that adequate information is provided to demonstrate compliance with the design intent of the specifications and drawings.

B. Submittals shall be concise and clear. Submittals which include manufacturer’s catalog data on other products or non-applicable options do not satisfy this requirement.

C. Submittals shall be accompanied by samples, descriptive literature and engineering information, as necessary, to fully identify and appraise the product.

D. Items approved shall not be construed as authorizing any deviations from the plans and specifications unless such deviations are clearly indicated in the form of a table of compliance that is enclosed with the submittals. The table of compliance shall clearly identify all deviations from the specifications with clear proof of equality for each case of deviation.

Each item in the table of compliance shall be marked to show specification reference including the section and paragraph numbers.

E. Contractor shall be responsible for verifying all dimensions with available space conditions (with provisions for proper access, maintenance, part replacement, and for coordination with other trades--electrical, plumbing, structural, etc.) for proper services, and construction requirements. Contractor to bear any additional cost for required changes in associated items which are directly or indirectly related to a substituted unit.

F. The Contractor shall furnish drawings showing all installation details, shop drawings, technical data and other pertinent information as required.

G. Approval of the equipment does not relieve the contractor of the responsibility of furnishing and installing the equipment at no additional cost.

H. Where Contractor substitutes equipment manufactured by an alternative vendor, the Contractor shall become responsible for the operation of the product in the intended system, including all related costs required to make the design work, function, and fit in the allocated space.

PART 3 - EXECUTION (NOT USED)

END OF SECTION

ELECTRICAL COORDINATION 260501 - 1

SECTION 260501 - ELECTRICAL COORDINATION

PART 1 - GENERAL CONDITIONS

1.1 INTERPRETATION OF CONTRACT DOCUMENTS

A. This section of the specifications and related drawings describe general provisions applicable to every section of Division 26.

B. Attention is directed to Instructions to Bidders and to Division 1, General Conditions, which are binding in their entirety on this portion of the work, in particular to paragraphs concerning materials, workmanship and substitutions.

C. The drawings of necessity utilize symbols and schematic diagrams to indicate various items of work. Neither of these have any dimensional significance nor do they delineate every item required for the intended installations. The work shall be installed, in accordance with the intent diagrammatically expressed on the drawings, and in conformity with the dimensions indicated on final architectural and structural working drawings and on equipment shop drawings. No interpretation shall be made from the limitations of symbols and diagrams that any elements necessary for complete work are excluded.

D. Certain details appear on the drawings which are specific with regard to the dimensioning and positioning of the work. These details are intended only for the purpose of establishing general feasibility. They do not eliminate the requirement for field coordination for the indicated work.

E. Information as to the general construction shall be derived from structural and architectural drawings and specifications only.

1.2 EXISTING CONDITIONS

A. The Contractor shall visit the premises and thoroughly familiarize himself with details of the work, working conditions, verify dimensions in the field, advise the Architect/Engineer of any discrepancy, and submit shop drawings of any changes he proposes to make, in quadruplicate for approval, before starting the work. Contractor shall install equipment in a manner to avoid building interference.

1.3 SHOP DRAWINGS

A. The Contractor shall not purchase any materials or equipment prior to receipt of approved shop drawings.

B. Prior to assembling or installing the work, prepare and submit shop drawings for the following items electrical equipment as specified in subsequent sections.

C. All submittals shall include adequate descriptive literature, catalog cuts, shop drawings and other data necessary for the Engineer to ascertain that the proposed equipment and materials comply with specification requirements.

ELECTRICAL COORDINATION 260501 - 2

D. Shop drawing sets shall be suitably bound and indexed. Loose sheets are not acceptable.

E. Catalog cuts submitted for approval shall be legible and shall clearly identify equipment being submitted. Items of the submittal that have been faxed or scanned are not acceptable.

F. Before preparing drawings, Contractor shall consult contract drawings and specifications in detail, obtain manufacturer's recommended installation instructions, and have shop drawings prepared based on specific equipment and material intended for installation. A principal of the contracting firm shall sign the shop drawings (indicating conformance with plans and specifications) before submission

G. Approval on shop drawings or schedules shall not relieve the Contractor from responsibility for deviations from drawings or specifications, unless he has in writing (and in letter form) called attention to such deviations at the time of submission and secured written approval;

nor shall it relieve him from responsibility for errors in shop drawings or schedules.

H. Submittals for individual systems and equipment assemblies which consist of more than one item or component shall be made for the system or assembly as a whole. Partial submittals will not be considered for approval.

1.4 AS-BUILT DRAWINGS

A. The Contractor shall keep a record set of drawings on the job and, as construction progresses, shall show the actual installed location of items, material, and equipment on these record set drawings.

B. At the time of final inspection, two corrected sets of drawings shall be delivered to the Architect. Drawings costs to be by the Contractor.

C. Corrected sets shall be made by obtaining a sepia of the applicable contract drawings.

Sepia prints shall be corrected deleting incorrect locations and showing installed locations in accordance with information transferred from job drawings.

D. Provide an additional set of corrected drawings in a moisture proof storage tube and mount the tube in the main electrical room.

1.5 OWNER'S MANUAL

A. The Contractor shall submit to the Architect three identical manuals that contain manufacturer's brochures of items installed by the Electrical Contractor.

B. The cover of the manual shall state the following information:

1. Project Name

2. Location

3. Owner

4. Architect

5. Electrical Engineer

6. Electrical Contractor (name, address, phone number)

7. General Contractor

8. Project Supervisors (general and electrical)

9. Date Of Project Completion

ELECTRICAL COORDINATION 260501 - 3

1.6 OPERATING AND MAINTENANCE INSTRUCTIONS

A. After final tests and adjustments have been completed, a competent employee of the Contractor shall be provided to instruct the Owner's Representative in the details of operation and maintenance for equipment installed. Supply qualified personnel to operate equipment for sufficient length of time to assure that Owner's Representative is qualified to take over operation and maintenance procedures. Instruction periods shall be as designated by the Owner and shall not necessarily be consecutive.

1.7 MAINTENANCE MATERIALS

A. All special tools for proper operation and maintenance of the equipment provided under this Specification shall be delivered to the Owner's Representative and a receipt requested for same.

B. Where specified, provide Owner's Representative with spare parts, equipment and materials and request a receipt for same.

PART 2 - PRODUCTS

2.1 EQUIPMENT IDENTIFICATION

A. In addition to the requirements of the National Electrical Code, install an identification sign which will clearly indicate information required for use and maintenance of items such as panelboards, cabinets, motor controllers (starters), safety switches, separately enclosed circuit breakers, individual breakers and controllers in switchgear and motor control assemblies, control devices and other significant equipment.

B. Nameplates shall be laminated black phenolic resin with a white core and engraved lettering, a minimum of 1/4-inch high. Nameplates that are furnished by manufacturer, as a standard catalog item, or where other methods of identification are herein specified, are exceptions.

1. Nameplates shall be attached with screws or rivets.

PART 3 - EXECUTION

3.1 SURFACE CONDITIONS

A. Inspection:

1. Prior to any Work, the Contractor shall carefully inspect the installed Work of other Trades and verify that such Work is complete to the point where his installation may properly commence.

2. Verify that equipment may be installed in accordance with pertinent codes and regulations, the original design, and the referenced standards.

B. Discrepancies:

1. In the event of discrepancy, immediately notify the Architect Engineer.

ELECTRICAL COORDINATION 260501 - 4

2. Do not proceed with installation in areas of discrepancy until such discrepancies have been fully resolved.

C. Return to original (pre-construction) condition any paved areas, sidewalks, planting, etc., disturbed during electrical system installation.

3.2 INSTALLATION

A. Install equipment in strict accordance with the manufacturer's recommendations and the shop drawings approved by the Engineer.

B. Secure equipment using fasteners suitable for the use, materials, and loads encountered. If requested, submit evidence proving suitability. Do not attach electrical materials to roof decking, removable or knockout panels, or temporary walls and partitions, unless indicated otherwise.

C. Coordinated electrical systems, equipment and materials complete with auxiliaries and accessories shall be installed. Remove, modify, relocate and reinstall the existing electrical equipment and materials as shown.

D. Equipment location: Shall be as close as practicable to locations shown on drawings.

E. Working spaces shall be not less than specified in the National Electrical Code for voltages specified.

F. Inaccessible Equipment:

1. Where the Engineer determines that the Contractor has installed equipment not conveniently accessible for operation and maintenance, equipment shall be removed and reinstalled as directed at no additional cost to the Owner.

2. "Conveniently accessible" is defined as being capable of being reached without the use of ladders, or without climbing or crawling under or over obstacles such as motors, pumps, belt guards, transformers, piping, and duct work.

G. Equipment and Materials:

1. New equipment and materials shall be installed unless otherwise specified.

2. Equipment and materials shall be designed to assure satisfactory operation and operating life for environmental conditions where being installed. NEC and other code requirements shall apply to the installation in areas requiring special protection such as explosion-proof, vapor-proof, watertight and weatherproof construction.

3.3 COORDINATION WITH OTHER TRADES

A. Coordinate work of each section with work of other sections to avoid interference. Bidders are cautioned to check their equipment against space available as indicated on drawings and shall make sure that proposed equipment can be accommodated. If interferences occur, Contractor shall bring them to the attention of Architect/Engineer, in writing, prior to signing of contract; or, Contractor shall, at his own expense, provide proper materials, equipment, and labor to correct any damage due to defects in his work caused by such interferences.

ELECTRICAL COORDINATION 260501 - 5

3.4 WORK PERFORMANCE

A. Arrange, phase and perform work to assure uninterrupted electrical service for other buildings. See General Methods of Procedure under Section GENERAL REQUIREMENTS.

B. New work shall be installed and connected to existing work neatly and carefully. Disturbed or damaged work shall be replaced or repaired to its prior condition.

C. Coordinate location of equipment and conduit with other trades to minimize interferences.

D. Cutting of Holes:

1. Holes through concrete and masonry in new and existing structures shall be cut with a diamond core drill or concrete saw. Pneumatic hammer, impact electric, hand or manual hammer type drills shall not be allowed.

2. Holes shall be located so as not to affect structural sections such as ribs or beams.

3. Holes shall be laid out in advance. The Architect shall be advised prior to drilling through structural sections, for determination of proper layout.

E. Where conduits, wireways, busduct, and other electrical raceways pass through fire partitions, fire walls or walls and floors, install a UL listed firestop assembly that matches the rating and is intended for the penetrated construction to provide an effective barrier against the spread of fire, smoke and gases. Penetrations shall be made and the fire-stopping installed in accordance with manufacturers written instructions and UL details.

3.5 PROTECTION AND CLEANING OF SYSTEMS AND EQUIPMENT

A. Protect materials and equipment from damage during storage at the Site and throughout the construction period. Equipment and materials shall be protected during shipment and storage against physical damage, dirt, moisture, cold and rain.

B. Damage from rain, dirt, sun and ground water shall be prevented by storing the equipment on elevated supports and covering them with securely fastened protective rigid or flexible waterproof coverings.

C. Conduit shall be protected by storing it on elevated supports and capping the ends with suitable closure material to prevent dirt accumulation in the piping.

D. During construction cap the top of conduits and raceway installed vertically.

E. During installation, equipment, controls, controllers, circuit protective devices, etc., shall be protected against entry of foreign matter on the inside; and be vacuum cleaned both inside and outside before testing, operating and painting.

F. Damaged equipment shall be placed in first class operating condition or be returned to source of supply for repair or replacement.

G. Painted surfaces shall be protected with removable heavy kraft paper, sheet vinyl or equal, installed at the factory, and removed prior to final inspection.

H. Damaged paint on equipment and materials shall be repainted with painting equipment and finished with same quality of paint and workmanship as used by manufacturer so repaired areas are not obvious.

ELECTRICAL COORDINATION 260501 - 6

3.6 DISPOSITION OF EXISTING MATERIAL AND EQUIPMENT

A. Material and equipment which is noted, specified, or required by the Owner to be salvaged and which is not scheduled to be reused or relocated shall be carefully removed and shall be delivered to the Owner and stored where directed on the site.

B. Carefully remove and store on the site material and equipment noted or specified to be reused or relocated. Thoroughly clean this equipment prior to installation.

C. Remove other materials or debris resulting from demolition operations from the site.

3.7 EXCAVATING, TRENCHING, BACKFILLING AND RESURFACING

A. Perform work as required, indicated, and in compliance with site work. Excavation depths indicated are below finished grade.

B. Do not excavate below required depth except as necessary for removal of unstable soil.

Unless indicated otherwise, pitch electrical conduit runs downward away from buildings.

C. Where backfill compaction is critical (e.g. under floor slabs, roadways, sidewalks, trenches deeper than four feet), test the degree of compaction each 75 linear feet of trench and each two feet of depth.

D. Repair the excavated area to original pre-excavation condition. Repair and replace sidewalks, roadways, etc.

3.8 IDENTIFICATION

A. Upper case letters of uniform height; centered on device, coverplate, or enclosure; engraved letters filled with a contrasting color; and characters made clearly and distinctly.

B. Use abbreviations defined in the contract documents whenever possible. Use plan designations for labeling, unless indicated otherwise. Indicate loads served using designations from electrical schedules and designations from the trade furnishing the equipment served.

C. Label inside covers in exterior locations and outside covers in unfinished areas of the following with a permanent ink marking pen:

1. Junction boxes or portions of junction boxes with 277 or 480 volt wiring;

2. Communications system pull and junction boxes

3. Pull, junction boxes, and raceway installed above ceilings and for future use.

D. Label feeder conductors and branch circuit conductors with self-adhesive, numbered labeling tapes; Brady Co. or equal. Indicate feeder numbers on feeders and terminal numbers for control conductors. Label conductors at origin and destination points and at junction boxes where two or more feeder or control circuits are present.

ELECTRICAL COORDINATION 260501 - 7

3.9 ACCESS TO EQUIPMENT

A. All equipment shall be installed in location and manner that will allow for convenient access for maintenance and inspection.

3.10 CONNECTION OF EQUIPMENT FURNISHED AND INSTALLED UNDER OTHER

DIVISIONS OF THE WORK

A. This Contractor shall rough-in and make final electrical connection to equipment requiring electrical connections with such equipment being furnished and installed under other Divisions of the Work.

B. Installations shall be functional and code complying.

C. This Contractor shall provide whatever incidental devices are necessary for final connection, such as, but not necessarily limited to outlet boxes, receptacles, connectors, clamps and switches.

D. Connection of Kitchen/Food Service Equipment shall be as follows:

1. Furnish and install conduit and wiring for Food Service Equipment, including junction boxes and receptacles at walls.

2. Coordinate with equipment supplier for specific types of receptacles required for plug-in equipment. Receptacles shown on electrical plans are symbolic only and are not intended to indicate exact types of connection.

3. Furnish and install disconnect switches between rough-in points and final connection points on equipment.

E. Connection of elevator equipment shall be as follows:

1. Rough-ins and connections vary between elevator manufacturers. Rough-ins shown on electrical plans are symbolic and do not represent rough-ins specific to each elevator manufacturer specified for use within the contract documents. Coordinate necessary rough-ins with elevator equipment supplier/installer. See architectural specifications for elevator manufacturers, coordinate rough-ins with elevator equipment provider.

2. Furnish and install rough-ins, conduit and conductors for elevator power, controls and maintenance in accordance with the NEC and elevator manufacturer’s specific requirements.

3. Furnish and install disconnect switches, fused and non-fused, with necessary interface contacts between rough-in points and final connection points on equipment.

4. Furnish and install conduit, conductors, contactors, relays, shunt trip breakers, and miscellaneous equipment required to perform the following functions associated with elevator operation:

a. Connection to automatic transfer switch(es) pre-transfer interfaces.

b. Shunt trip circuit breakers where required.

c. Interface with building fire alarm and communications systems.

d. Rough-in and connection of sump pumps, oil separators, oil detection systems and other systems necessary for elevator operation furnished by other trades of work.

ELECTRICAL COORDINATION 260501 - 8

3.11 GENERAL COMPLETION AND DEMONSTRATION

A. Results expected:

1. Systems shall be complete and operational, and controls shall be set and calibrated.

2. Testing, start-up and cleaning work shall be complete.

B. Demonstration:

1. Upon notification by the Contractors, the Engineer will visit the project for a demonstration of the building system and an inspection of the completed work.

2. Items which do not comply with the Contract Documents or which function incorrectly will be listed, and the list will be submitted by the Engineer to the Contractors for repairs.

3. After corrections have been made the Contractors shall notify the Architect/Engineer who will recheck the systems for compliance of items listed.

3.12 COORDINATION WITH COMMISSIONING AGENT

A. Contractor shall coordinate their work with the Owner’s Commissioning Agent. Provide necessary labor, materials, test equipment, etc. Attend meetings with the Commissioning Agent and participate in the development and implementation of the Commissioning Plan.

B. Perform necessary corrective work to comply with deficiencies noted by the Commissioning Agent.

3.13 CLEANING

A. Periodically during construction and prior to Owner acceptance of the building, Contractor shall remove from the premises and dispose of packing material and debris.

WIRE AND CABLE - BUILDING WIRE (600 VOLTS AND BELOW) 260519 - 1

SECTION 260519 - WIRE AND CABLE - BUILDING WIRE (600 VOLTS AND BELOW)

PART 1 - GENERAL

1.1 SCOPE

A. This section includes the furnishing, installation, and connection of the building wire for power and lighting circuits.

B. Unless otherwise specified in other sections of these specifications, control wiring shall be provided, installed, and connected to perform the functions specified in other sections of these specifications.

C. Unless otherwise specified in other sections of these specifications, communication, fire alarm, data/IT, security, and signal wiring shall be provided, installed, and connected to perform the function specified in other sections of these specifications.

1.2 RELATED WORK/SECTIONS

A. In addition to this section, the Contractor shall refer to other specification sections and drawings to ascertain the extent of work included. This shall include, but not be limited to, the following:

1. Division 1

2. All other Division 26000 sections

1.3 WORK INCLUDED

A. The work under this section consists of furnishing materials and equipment, performing labor and services necessary for the installation of the electrical cable and wiring system shown on the drawings and hereinafter specified.

1.4 APPLICABLE PUBLICATIONS

A. The following specifications and standards, except as hereinafter modified, are incorporated herein by reference and form a part of this specification to the extent indicated by the references thereto. Except where a specific date is given, the issue in effect (including amendments, addenda, revisions, supplements, and errata) on the date of Invitation for Bids shall be applicable. In text such specifications and standards are referred to by basic designation only.

1. National Fire Protection Association (NFPA) Publications No. 70 . . . . . .. National Electrical Code (NEC)

2. Underwriters' Laboratories, Inc. (UL) Publications:

No. 44 . . . . . .. Rubber-Insulated Wire and Cables No. 83 . . . . . . .Thermoplastic-Insulated Wires

WIRE AND CABLE - BUILDING WIRE (600 VOLTS AND BELOW) 260519 - 2

No 493 . . . . . . .Thermoplastic-Insulated Underground Feeder and Branch Circuit Cables No. 486. . . . . . .Wire Connectors and Soldering Lugs

PART 2 - PRODUCTS

2.1 MATERIALS

A. Building Wire (Power and Lighting):

1. Cable and wire shall be in accordance with UL, NEC, as shown on the drawings, and as hereinafter specified.

2. Conductors:

a. Shall be annealed copper.

b. Shall be stranded for sizes No. 8 and larger. Sizes No. 10, and smaller shall be solid.

c. Size shall be not less than shown on the drawings. Minimum size shall be No.

12 AWG.

3. Insulation: Unless otherwise shown on the drawings, insulation shall be as follows:

a. THHN - THWN – Dry, Damp, Wet Locations

b. XHHW – Dry, Damp, Wet Locations.

4. Color Code:

a. All secondary service, feeder, and branch circuit conductors shall be color coded as follows:

208/120 Volt Phase 480/277 Volt Black A Brown Red B Orange Blue C Yellow White Neutral Gray

b. All No. 12 and No. 10 branch circuit conductors shall have solid color compound or solid color coating.

c. No. 8 AWG and larger phase conductors shall have either:

1) Solid color compound or solid color coating.

2) Stripes, bands, or hash marks of colors specified above.

3) Colored pressure-sensitive plastic tape. Tape shall be applied in half overlapping turns for a minimum of three inches for all terminal points, and in all junction boxes, pull boxes, troughs, manholes, and handholes. Tape shall be 3/4-inch wide with colors as specified above. The last two laps of tape shall be applied with no tension to prevent possible unwinding. Where cable markings are covered by tape, apply tags to cable stating size and insulation type.

d. For modifications and additions to existing wiring systems, color coding shall conform to the existing wiring system.

WIRE AND CABLE - BUILDING WIRE (600 VOLTS AND BELOW) 260519 - 3

B. Splices and Joints:

1. Shall be in accordance with UL and NEC.

2. Branch circuits (No. 10 AWG and smaller):

a. Connectors shall be solderless, screw-on, pressure cable type, 600 volt, 105 degree C, with integral insulation. They shall be approved for copper conductors, and shall be reusable.

b. The integral insulator shall have a skirt to completely cover the stripped wires.

c. The number, size, and combination of conductors as listed on the manufacturers packaging shall be strictly complied with.

3. Feeder Circuits:

a. Connectors shall be indent, hex screw, or bolt clamp-type. Material shall be high conductivity and corrosion-resistant.

b. Connectors for cable sizes 250 MCM and larger shall have not less than two compression indents.

c. Splices and joints shall be insulated with materials approved for the particular use, location, voltage, and temperature. Insulation shall be not less than that of the conductors being joined.

d. Plastic electrical insulating tape:

1) Tape shall be flame retardant, cold and weather resistant.

C. Control Wiring:

1. Unless otherwise specified in other sections of these specifications, control wiring shall be as specified for power and lighting wiring.

2. Wire size shall be large enough so that the voltage drop under inrush conditions will not adversely affect operation of the controls.

D. Wire Lubricating Compound shall be suitable for the wire insulation and conduit it is used with, and shall not harden or become adhesive.

PART 3 - EXECUTION

3.1 INSTALLATION

A. Installation shall be in accordance with the NEC, as shown on the drawings, and as hereinafter specified.

B. All wiring shall be installed in raceway systems, except where direct burial is shown on the drawings.

C. Cables and wires shall be spliced only in outlet boxes, junction boxes, pull boxes, manholes, or handholes.

D. Cable supports shall be installed for all vertical feeders in accordance with the NEC. They shall be of the split wedge type which firmly clamps each individual cable and tightens due to cable weight.

WIRE AND CABLE - BUILDING WIRE (600 VOLTS AND BELOW) 260519 - 4

E. For panelboards, cabinets, wireways, switches, and equipment assemblies, neatly form, train, and tie the cables in individual circuits.

F. Cable and wire entering a building from underground shall be sealed between the wire and conduit, where the cable exits the conduit, with a nonhardening approved compound.

G. Wire Pulling:

1. Suitable installation equipment shall be provided to prevent cutting or abrasion of conduits during pulling of feeders.

2. Ropes used for pulling feeders shall be made of suitable nonmetallic material.

3. Pulling lines for feeders shall be attached by means of either woven basket grips or pulling eyes attached directly to the conductors.

4. All cables to be pulled in a single conduit shall be pulled in together.

3.2 FIELD TESTING

A. Feeders and branch circuits shall have their insulation tested after installation and before connection to utilization devices such as fixtures, motors, or appliances.

B. Test shall be performed by megger and conductors shall test free from short-circuits, grounds, and opens.

C. Conductors shall be tested phase-to-phase and phase-to-ground.

JANUARY 22, 2025

GROUNDING 260526 - 1

SECTION 260526 - GROUNDING

PART 1 - GENERAL

1.1 SCOPE OF WORK:

A. This section includes the furnishing, installation, and connection of conduit, fittings, and boxes to form complete, coordinated, grounding systems.

B. The term ground, as used in this specification, shall mean any or all of the grounding types specified.

1.2 RELATED WORK/SECTIONS:

A. In addition to this section, the Contractor shall refer to other specification sections and drawings to ascertain the extent of work included. This shall include, but not be limited to, the following:

1. Division 1.

2. All other Division 26 sections.

1.3 QUALITY ASSURANCE:

A. NEC Compliance: Comply with NEC requirements as applicable to materials and installation of electrical grounding systems, associated equipment and wiring. Provide grounding products which are UL listed and labeled.

B. UL Compliance: Comply with applicable requirements of UL Standards Nos. 467 and 869 pertaining to electrical grounding and bonding.

C. IEEE Compliance: Comply with applicable requirements of IEEE Standard 142 and 241 pertaining to electrical grounding.

D. ANSI/NECA/BICSI Standards: Standard for Telecommunications Bonding and Grounding Planning and Installation methods for Commercial Buildings – ANSI/NECA/BICSI Standard 607.

E. Manufacturer Standards: Standards and Guidelines for Communications Sites – Motorola R- 56.

PART 2 - PRODUCTION

2.1 GENERAL:

A. Provide electrical grounding systems with assembly of materials, including cables/wires, connectors, terminals, solderless lugs, grounding rod/electrodes, bonding jumper braid and additional accessories needed for complete installation. Where materials or components are

GROUNDING 260526 - 2

not indicated, provide products complying with standards listed under section 1.3 above and established industry standards.

2.2 GROUNDING CONDUCTORS:

A. Shall be UL and NEC approved types, copper, with insulation color identified green, except where otherwise shown on the drawings, or specified.

B. Branch circuit grounding conductor size shall not be less than #12 AWG and not less than required by the NEC.

2.3 GROUND RODS:

A. Ground rods shall be copperclad steel, 3/4-inch diameter by minimum ten feet long.

2.4 GROUNDING CLAMPS:

A. Clamps for connection of grounding electrode conductors to metal piping 1" and less in diameter shall be cast brass/bronze and of the single screw type design.

B. Clamps for bonding metal piping for 1" through 6" in diameter shall be bronze or brass and of the U-bolt type.

2.5 CONNECTIONS AT GECB AND MGECB:

A. Grounding conductor connections shall be made utilizing listed two-hole compression or exothermically welded lugs.

B. Securing hardware shall be constructed from 300 series stainless steel unless noted otherwise. Hardware shall be sized to match the lug hole size for the conductor.

PART 3 - EXECUTION

3.1 INSTALLATION OF ELECTRICAL GROUNDING:

A. General: Install electrical grounding systems in accordance with applicable portions of NEC, with NECA's "Standard of Installation," and in accordance with recognized industry practices to ensure that products comply with requirements and serve intended functions.

B. Coordinate with other electrical work as necessary to interface installation of electrical grounding system with other work.

C. Weld grounding conductors to underground grounding rods/electrodes.

D. Connection to structural steel building components shall be made utilizing exothermic welding. Bolted connections for bonding to steel building components shall only be used in load bearing masonry construction when connecting to bar joist roofing systems.

GROUNDING 260526 - 3

3.2 FEEDERS AND BRANCH CIRCUITS:

A. Install green insulated equipment grounding conductors with all feeders and branch circuits.

Conductors shall be sized in accordance with NEC Article 250.

3.3 EQUIPMENT GROUNDS:

A. All equipment that has electrical connections (lights, receptacles, panels, and utilization equipment) shall have a ground wire connected that is directly tied to the ground bus of the panel which serves it.

B. Fixed electrical appliances and equipment shall have a ground lug installed and provided by this contractor for termination of the green ground conductor.

3.4 CONDUCTIVE PIPING:

A. Bond all conductive piping systems in the building whether furnished and installed by this contractor or not to the electrical system ground. Bonding connections shall be made as close as practical to the water pipe ground or service equipment ground bus.

3.5 GROUND ROD INSTALLATION:

A. Distance: Drive each rod vertically for not less than ten feet.

B. Multiple Rods: Where required to obtain the specified ground resistance, install multiple rods.

C. Where ground connections will be permanently concealed, make the connections by the exothermic process to form solid metal joints. Make accessible ground connections with clamp type ground connectors.

D. Where rock prevents the driving of vertical ground rods, install grounding electrodes in trenches and of suitable length to achieve the specified resistance.

3.6 FIELD QUALITY CONTROL:

A. Upon completion of installation of electrical grounding systems, test ground resistance with ground resistance tester. Where tests show resistance to ground over 3 ohms, take appropriate action to reduce resistance to 3 ohms, or less, by driving additional ground rods and/or by chemically treating soil encircling ground rod; then retest to demonstrate compliance. Ground resistance tests shall be performed utilizing fall-of-potential test method for ground resistance measurements.

B. Record results of all ground resistance tests and corrective actions and include copies within the Operation and Maintenance Manual.

CONDUITS/RACEWAYS AND FITTINGS 260533 - 1

SECTION 260533 - CONDUITS/RACEWAYS AND FITTINGS

PART 1 - GENERAL

1.1 SCOPE

A. This section includes the furnishing, installation, and connection of conduit, fittings, and boxes to form complete, coordinated, grounded raceway systems.

B. Types of raceways in this section include the following:

1. Rigid metal conduit (RMC or GRC)

2. Intermediate metal conduit (IMC)

3. Electrical metallic tubing (EMT)

4. Flexible metal conduit (FMT)

5. Liquidtight flexible metal conduit (LFMC)

6. Rigid PVC conduit (PVC)

C. The term conduit, as used in this specification, shall mean any or all of the raceway types specified.

1.2 RELATED WORK/SECTIONS

A. In addition to this section, the Contractor shall refer to other specification sections and drawings to ascertain the extent of work included. This shall include, but not be limited to, the following:

1. Division 1

2. All other Division 26000 sections

1.3 QUALITY ASSURANCE

A. NEMA Compliance: Comply with applicable requirements of NEMA standards pertaining to raceways.

B. UL Compliance and Labeling: Comply with provisions of UL safety standards pertaining to raceways systems; and provide products and components which have been UL listed and labeled.

C. NEC Compliance: Comply with requirements as applicable to construction and installation of raceway systems.

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PART 2 - PRODUCTS

2.1 RIGID METAL CONDUIT (RMC OR GRC)

A. Rigid metal steel conduit shall conform to ANSI C80.1 and Underwriter's Laboratories UL-6 specification, ANSI C80.1.

B. Conduit shall be hot-dipped galvanized to provide a corrosion resistant coating.

C. Fittings: Fittings shall be ANSI/NEMA FB 1 threaded type, hot dipped or electronic plated.

Threaded conduit to be secured to boxes, cabinets, etc., by means of galvanized threaded bushings on the inside and bond-type locknuts on the inside and outside of such boxes and cabinets. Fittings shall be watertight and the same material as conduit installed with factory manufactured elbows.

2.2 RIGID INTERMEDIATE STEEL CONDUIT (IMC)

A. Intermediate Metallic Conduit shall conform to ANSI C80.1 and proposed Underwriter's Laboratories UL 1242 specification.

B. Conduit shall be hot-dipped galvanized to provide a corrosion resistant coating. Intermediate Metallic Conduit (IMC) shall have galvanized/metallized thread protection, and pipe interior shall be protected by corrosion inhibiting coating.

C. Fittings: Shall be similar to GRC.

D. Maximum allowable size shall be (4) inches.

2.3 ELECTRICAL METALLIC TUBING (EMT)

A. Electrical metallic tubing shall conform to ANSI C80.3 and Underwriter's Laboratories UL 797.

B. EMT shall be hot-dipped galvanized steel with internal coating of silicone epoxy lubricant to assist in wire pulling.

C. Fittings: Shall be compression type, steel or malleable iron. Set screw or indentation type of fittings are not acceptable.

2.4 FLEXIBLE METAL CONDUIT (FMC)

A. Flexible metal conduit shall conform to UL 1.

B. Flexible conduit to be of hot-dipped galvanized interlocked spirally wound steel strip.

C. Fittings shall be multiple point type, threading into the internal wall of the conduit convolutions, and shall have insulated throat. Connectors to be galvanized and be suitable for connection to associated boxes and conduits.

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2.5 LIQUID TIGHT FLEXIBLE METAL CONDUIT (LFMC)

A. Liquid-tight flexible metal conduit shall conform to UL 360.

B. Liquid-tight flexible metal conduit shall consist of flexible galvanized steel tubing over which is extruded a liquid-tight jacket of polyvinyl chloride (PVC). Conduit shall be provided with a continuous copper bonding conductor wound spirally between the convolutions.

C. Fittings used shall be reusable type of malleable iron/steel construction, electro zinc plated inside and outside, furnished with nylon insulated throat and taper threaded hub. Connectors to be galvanized and be suitable for connection to associated boxes and conduits.

2.6 RIGID PVC (PVC)

A. Conduit shall be UL rated 90°C and to UL-651. Fittings shall conform to UL-514.

B. Conduit shall be S40 wall thickness made from polyvinyl chloride (recognized by UL) compound which includes inert modifier to improve weatherability and heat distortion.

Conduit and couplings shall be homogenous plastic material free from visible cracks, holes, or foreign inclusions. Conduit bore shall be smooth and free from blisters, nicks, or other imperfections which could mar conductors or cables.

C. Bends: 90° bends shall be made with galvanized rigid steel elbows. Bends other than 90° shall be made from S80 PVC conduit.

2.7 CONDUIT SUPPORTS

A. Parts and hardware shall be zinc-coated or have equivalent corrosion protection.

B. Pipe straps: Fed. Spec. FF-S-760, type 1, style A or B.

C. Individual conduit hangers: Shall be designed for the purpose, and have pre-assembled closure bolt and nut, and provisions for receiving hanger rod.

D. Multiple conduit (trapeze) hangers shall be not less than 1-1/2 x 1-1/2 inch, 12 gage steel, cold formed, lipped channels. Hanger rods shall be not less than 3/8 inch diameter steel.

E. Solid masonry and concrete anchors: Fed. Spec. FF-S-325 shall apply. Anchors shall be GROUP III self-drilling expansion shields, or machine bolt expansion anchors GROUP II type 2 or 4, or GROUP VII.

PART 3 - EXECUTION

3.1 CONDUIT INSTALLATION SCHEDULE

A. Conduits utilized shall be metallic conduit types listed in this specification. Metallic conduit types shall be applied for specific system types as follows:

1. Power distribution feeders such as feeders for switchboards, panelboard, transformers, etc.:

CONDUITS/RACEWAYS AND FITTINGS 260533 - 4

a. Exposed or concealed - RMC or IMC

b. Below slabs on grade or underground outside of building - PVC

2. Feeders to motors: Same requirements as power distribution feeders.

3. Branch circuits from panelboards (not described above):

a. wet or damp locations exposed or concealed - RMC or IMC

b. Dry locations exposed or concealed - EMT.

c. Below slabs on grade or underground outside of building - PVC

4. HVAC equipment feeders 1-1/2" trade size and larger: Same requirements as power distribution feeders.

5. HVAC equipment feeders smaller than 1-1/2” trade size: Same requirements as branch circuits from panelboards.

6. Low voltage systems such as building automation and control systems, information technology systems: Same requirements as branch circuits.

3.2 CONDUIT INSTALLATION

A. Installation shall be in accordance with UL, NEC, as shown on the drawings, and as hereinafter specified.

B. Contractor shall lay out and install conduit runs to avoid proximity to hot pipes. In no case will a conduit be run within three inches of such pipes, except where crossings are unavoidable and then conduit shall be kept at least one inch from the covering on pipe crossed.

C. Conduits shall be supported as required to comply with applicable paragraphs of the NEC.

D. Conduit installation shall be as follows:

1. Installed as complete runs before pulling in cables or wires.

2. Flattened, dented, crushed or deformed conduit is not permitted and shall be removed and replaced at no cost to the Owner.

3. Installed so they will not obstruct headroom, walkways, doorways or work by other trades.

4. Cut square with a hacksaw, reamed, burrs removed, and drawn up tight.

5. Mechanically continuous.

a. Metallic raceway shall also be electrically continuous.

6. Supported within one foot of changes of direction, and within one foot of each enclosure to which connected.

7. Ends of empty conduit to be closed with plugs or caps at rough-in stage to prevent entry of debris until wires are pulled in.

8. Conduits shall be secured to cabinets, junction boxes, pull boxes, and outlet boxes by bonding type locknuts.

9. See architectural detail for conduit penetrations of roof membrane.

E. Conduit Bends:

1. Shall be made with standard conduit bending machines.

CONDUITS/RACEWAYS AND FITTINGS 260533 - 5

2. Conduit hickey may be used for slight offsets, and for straightening stubbed out conduits.

3. Conduits shall not be bent with a pipe tee or vice.

F. Conduit shall be securely fastened in place at intervals as specified by the code using suitable straps, hangers and other supporting assemblies. Strap hangers and supporting assemblies:

1. Shall be of rugged construction capable of supporting weight with a reasonable factor of safety.

2. Spacers and supporting straps shall be of rugged malleable iron or steel construction hot dipped galvanized.

3. Shall be adequately protected against corrosion.

G. In wet locations or in locations where corrosive conditions are present, vertical and horizontal runs of conduit shall be firmly supported so that there is at least 1/4" air space between the conduit and the wall or supporting surface. Spacers and supporting straps shall be of malleable iron construction, hot dipped galvanized.

H. Flexible conduit when installed shall have sufficient slack to avoid sharp flexing and straining due to vibration and thermal expansion/construction. Conduit shall be installed in such a manner that liquids will tend to run off the surface instead of draining towards the fittings.

I. Concealed work installation:

1. In cast-in-place:

a. Conduits may be installed in concrete that is at least than 3 times conduit trade size in thickness but in no case less than 3” thick.

b. Conduit shall be run in direct lines.

c. Conduit may be installed through concrete beams where shown on the structural drawings or as approved by the Engineer prior to installation.

1) Submit drawings showing locations size, and position of each proposed penetration for review prior to installation.

d. Spacing between conduits in slab shall be approximately six conduit diameters apart except one conduit diameter at conduit crossings.

e. Conduits shall be installed approximately at the center of the slab.

f. Couplings and connections shall be concrete tight. Thread compounds shall be

UL approved conductive type to ensure low resistance ground continuity through the conduits.

2. In CMU (Concrete Masonry Unit) Walls:

a. Conduits shall run vertically within CMU walls except where noted on the drawings or as approved by the Engineer prior to construction.

3. Conduit shall be run parallel or perpendicular to the building lines.

4. Branch circuit conduits, and conduits feeding ceiling lighting shall be supported independently from suspended ceiling, lighting fixtures, or air conditioning ducts.

5. Recessed lighting fixtures shall be connected to conduit with not over six feet of flexible metal conduit.

CONDUITS/RACEWAYS AND FITTINGS 260533 - 6

J. Exposed work installation:

1. Conduit shall be run parallel or perpendicular to the building lines.

2. Horizontal runs shall be installed close to the ceiling or beams and secured with approved conduit straps.

3. Horizontal or vertical runs shall be supported at not over eight foot intervals.

K. Installation underground or below slabs on grade:

1. Tops of conduits shall be:

a. Not less than 24 inches and not less than shown on the drawings below finished grade.

b. Not less than 30 inches and not less than shown on the drawings below road and other paved surfaces.

2. Conduits shall be installed below power company direct burial primary feeders where encountered. Coordinate spacing below primary feeder with utility company.

3. Underground conduits shall be encased in not less than 3" of red cast-in-place concrete (all around) where run outside of buildings or equipment pads.

L. Transition from PVC to metallic conduit:

1. Where PVC conduit…